辽宁省11个玉米主栽品种对大斑病菌的抗性鉴定

Identification for the Resistance of the Major Maize Cultivars to Different Physiological Races of E.Turcicum in Liaoning Province

采用带菌玉米粒接种法,完成辽宁省11个玉米主栽品种对12个大斑病菌生理小种的抗性鉴定。结果表明,各品种对不同生理小种的抗病性存在明显差异。抗病性鉴定与品种系谱相关性分析表明,品种对不同生理小种的抗性与品种血缘相关。

Maize seed with inocula was inoculated into leaf whorl of plants at 10~12 leaf stage of plant,the resistance of 11 major maize cultivars in Liaoning province to 12 different physiological races of E.turcicum was identiffied.There was obvious difference in different physiological races to the cultivars.Identification of disease resistance and pedigree analysis showed that the cultivars resistance to different physiological races had correlation with the consanguinity of the cultivars.In addition,climatic conditions impacted on the results of the identification of resistance.